rethinkers.dk

📜 Historical scan 2026-06-17 23:41:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rethinkers.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 26 March 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.155.240 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rethinkers-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.155.240	—	forward.dnsfactory.dk	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	rethinkers-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::f 2a01:111:f403:ca09:: 2a01:111:f403:ca09::d 52.101.68.21 52.101.68.32 52.101.73.12 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.99.204.104
🔶 Autoconfig	93.191.155.240

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 222ms

TXT Record
MS=ms51603720
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (rethinkers.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 20:41:04

www	93.191.158.42 (AS48854) (address records, no CNAME)
www vs bare domain	Same network rethinkers.dk: 93.191.158.42 (AS48854) www.rethinkers.dk: 93.191.158.42 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-rethinkers-dk._domainkey.fondenvisitaarhus.e-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

101ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

37ms

Field	Value
Serial	2025082101
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 22:17:41

Field	Value
Registrar	DANDOMAIN A/S
Registered	2015-03-26
Expires	2027-03-31 (159d)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

38ms

39ms

AAAA

39ms

TXT

222ms

CAA

37ms

HTTPS

38ms

TLSA

1084ms

SOA

37ms

MTA-STS

262ms

DNSSEC

101ms

SRV

2057ms

Total

3622ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 20:41:04	535ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 02:02:38	1374ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 04:34:26	2975ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 06:00:16	1304ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 04:37:02	929ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 23:41:46 shown	3622ms	2 NS 1 A 1 MX	🔒 Secure